Portable tree step



FIG. 1 is a perspective view of a portable tree step of the claimed design;

FIG. 2 is a top view of the portable tree step of FIG. 1;

FIG. 3 is a right side view of the portable tree step of FIG. 1;

FIG. 4 is a front view of the portable tree step of FIG. 1;

FIG. 5 is a rear view of the portable tree step of FIG. 1; and,

FIG. 6 is a bottom view of the portable tree step of FIG. 1.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a portable tree step, as shown and described. 